Tropedd

Troad organeb, yn enwedig planhigyn, i gyfeiriad arbennig mewn ymateb i symbyliad allanol yw tropedd[1][2] neu atroad.[2] Mae mathau o d

Tropedd

Troad organeb, yn enwedig planhigyn, i gyfeiriad arbennig mewn ymateb i symbyliad allanol yw tropedd[1][2] neu atroad.[2] Mae mathau o dropedd yn cynnwys ffototropedd (golau), geotropedd (disgyrchiant), cemotropedd (sylweddau), hydrotropedd (dŵr), thigmotropedd (symbyliad mecanyddol), trawmatotropedd (niwed), ac electrotropedd (cerrynt trydanol).[3]

Cyfeiriadau

  1. ↑  tropedd. Geiriadur Prifysgol Cymru. Adalwyd ar 15 Medi 2014.
  2. ↑ 2.0 2.1 Geiriadur yr Academi, [tropism].
  3. ↑ (Saesneg) tropism. Encyclopædia Britannica. Adalwyd ar 15 Medi 2014.
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